Dymax Hang-over back crystal filter SLIM FLO SF-240
About this product
Dymax Hang-over Back Crystal Filter SLIM FLO SF-240
At School of Scape, we understand that effective filtration is one of the most important parts of maintaining a healthy aquarium. Poor water circulation and inadequate filtration can quickly lead to waste buildup, reduced oxygen levels, and poor water quality that can affect fish, plants, corals, and other aquatic life.
The Problem
Many aquarium owners struggle with:
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Bulky internal filters taking up valuable aquarium space
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Poor water circulation and reduced oxygen levels
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Waste and debris accumulating throughout the aquarium
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Filters that are difficult to adjust during feeding
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Equipment that distracts from the appearance of a carefully designed aquascape
The Solution
School of Scape proudly presents the Dymax Slim Flo SF-240 — a compact external hang-on-back filter designed to provide reliable filtration without taking up valuable space inside your aquarium.
The filter simply clips onto the side of the aquarium, keeping the filtration unit outside the tank while the extendable intake pipe draws water from deeper areas of the aquarium. Its cascading water return helps increase surface movement and oxygen exchange, supporting a healthier environment for your aquatic livestock.
Adjustable flow control also allows you to reduce the water movement when required, making feeding and routine aquarium maintenance easier.
Key Features
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✅ Slim external hang-on-back design
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✅ Keeps valuable internal aquarium space free
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✅ Cascading water return helps increase oxygen levels
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✅ Encourages effective aerobic filtration
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✅ Extendable intake pipe reaches closer to the bottom of the aquarium
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✅ Adjustable flow control for greater flexibility
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✅ Flow can be reduced during feeding time
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✅ Suitable for freshwater and planted aquariums
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✅ Helps improve water circulation and overall water quality
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✅ Easy to install, operate, and maintain
Who Is It For?
Perfect for planted aquariums, community fish tanks, aquascapes, and smaller aquarium setups where space-saving filtration and good oxygen exchange are important.
It is particularly suited to aquarists who want effective filtration without installing a bulky internal filter that takes attention away from the aquarium layout.
Final Verdict
Keep your aquarium clean, well-oxygenated, and beautifully presented without sacrificing valuable internal space.
The Dymax Slim Flo SF-240 combines efficient filtration, adjustable water flow, an extendable intake, and a compact hang-on-back design to provide practical and reliable filtration for your aquarium.
Trust School of Scape and the Dymax Slim Flo SF-240 to help maintain the clean, healthy aquatic environment your fish and plants deserve.
Delivery and returns
Free delivery over $100 in WA and $150 elsewhere in Australia. Free pickup from our Kenwick store, Tue to Sat, 12pm to 6pm.